Tool/software:
I write an application to implement a surround view system with 4 CSI-2 Cameras.I use V4L2 to get the camera data and gpu to render the data,the CPU will also process the data at the same time.
There is about a 5% chance that the kernel prints “j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5” when the application begins to process the camera data.the kernel and the applicaiton are both alive.
[ 12.300439] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5 [ 12.308988] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5 [ 12.340201] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5 [ 12.348656] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5 [ 12.356977] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5 [ 12.365278] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5
sometimes, the kernel crashes after the prints:
[ 12.231154] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5 [ 12.272619] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5 [ 12.281605] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5 [ 12.290444] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5 [ 12.299284] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5 [ 12.311782] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5 [ 12.320773] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5 [ 12.329853] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5 [ 12.339248] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5 [ 12.352418] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5 [ 12.362069] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA ret:-5 [ 12.372079] Unable to handle kernel paging request at virtual address dead000000000108 [ 12.379993] Mem abort info: [ 12.382780] ESR = 0x0000000096000044 [ 12.386522] EC = 0x25: DABT (current EL), IL = 32 bits [ 12.391821] SET = 0, FnV = 0 [ 12.394866] EA = 0, S1PTW = 0 [ 12.397996] FSC = 0x04: level 0 translation fault [ 12.402860] Data abort info: [ 12.405729] ISV = 0, ISS = 0x00000044, ISS2 = 0x00000000 [ 12.411199] CM = 0, WnR = 1, TnD = 0, TagAccess = 0 [ 12.416238] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 12.421538] [dead000000000108] address between user and kernel address ranges [ 12.428660] Internal error: Oops: 0000000096000044 [#1] PREEMPT SMP [ 12.434915] Modules linked in: ox01g10 max96701 pvrsrvkm(O) rti_wdt sa2ul mcrc64 wave5 v4l2_mem2mem max96755r max96724 [ 12.445628] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Tainted: G W O 6.12.17+ #7 [ 12.453792] Tainted: [W]=WARN, [O]=OOT_MODULE [ 12.458136] Hardware name: Texas Instruments AM62P5 SK (DT) [ 12.463694] pstate: 200000c5 (nzCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 12.470640] pc : ti_csi2rx_dma_callback+0x70/0xe8 [ 12.475343] lr : ti_csi2rx_dma_callback+0x68/0xe8 [ 12.480039] sp : ffff800080003e20 [ 12.483343] x29: ffff800080003e20 x28: 0000000000000101 x27: 0000000000000040 [ 12.490472] x26: ffff000000f5e378 x25: dead000000000122 x24: ffff000001a21c78 [ 12.497600] x23: ffff000001a21c50 x22: 0000000000000000 x21: ffff0000049dd400 [ 12.504728] x20: ffff000001a21570 x19: ffff0000049dd000 x18: 0000000000000006 [ 12.511855] x17: 2072656666756220 x16: 7478656e20656874 x15: 206575657571206f [ 12.518983] x14: 742064656c696146 x13: ffff800080d8cd38 x12: 00000000000009ab [ 12.526111] x11: 0000000000000339 x10: ffff800080de4d38 x9 : ffff800080d8cd38 [ 12.533239] x8 : 00000000ffffefff x7 : ffff800080de4d38 x6 : 80000000fffff000 [ 12.540367] x5 : ffff8000806b2f2c x4 : 0000000000000000 x3 : dead000000000100 [ 12.547494] x2 : dead000000000122 x1 : 0000000000000100 x0 : 0000000000000005 [ 12.554623] Call trace: [ 12.557061] ti_csi2rx_dma_callback+0x70/0xe8 [ 12.561411] udma_vchan_complete+0x20c/0x258 [ 12.565676] tasklet_action_common+0xf8/0x11c [ 12.570027] tasklet_action+0x2c/0x38 [ 12.573682] handle_softirqs+0x104/0x248 [ 12.577598] __do_softirq+0x14/0x20 [ 12.581077] ____do_softirq+0x10/0x1c [ 12.584731] call_on_irq_stack+0x24/0x4c [ 12.588645] do_softirq_own_stack+0x1c/0x28 [ 12.592819] irq_exit_rcu+0x8c/0xc4 [ 12.596301] el1_interrupt+0x38/0x68 [ 12.599869] el1h_64_irq_handler+0x18/0x24 [ 12.603956] el1h_64_irq+0x64/0x68 [ 12.607348] default_idle_call+0x28/0x3c [ 12.611264] do_idle+0x200/0x258 [ 12.614484] cpu_startup_entry+0x38/0x3c [ 12.618398] kernel_init+0x0/0x1d4 [ 12.621793] start_kernel+0x54c/0x694 [ 12.625447] __primary_switched+0x80/0x88 [ 12.629454] Code: 528000a1 97ffbd90 a9428aa3 d2802001 (f9000462) [ 12.635533] ---[ end trace 0000000000000000 ]--- [ 12.640140] Kernel panic - not syncing: Oops: Fatal exception in interrupt [ 12.647000] SMP: stopping secondary CPUs [ 13.723945] SMP: failed to stop secondary CPUs 1 [ 13.728556] Kernel Offset: disabled [ 13.732032] CPU features: 0x00,00000000,00200000,4200420b [ 13.737418] Memory Limit: none [ 13.740463] ---[ end Kernel panic - not syncing: Oops: Fatal exception in interrupt ]---
It works well If the application just keep getting the camera data and do nothing with them.
the applicaton works well on other platforms.
what does this failure means? and What are the potential reasons for this failure?
